61311640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{751}}^1$

素因数の和:932

約数の個数: 64

約数和(自身を含む): 149708160

約数和(自身を除く): 88396520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 751, 785, 1256, 1502, 1570, 2041, 3004, 3140, 3755, 4082, 6008, 6280, 7510, 8164, 9763, 10205, 15020, 16328, 19526, 20410, 30040, 39052, 40820, 48815, 78104, 81640, 97630, 117907, 195260, 235814, 390520, 471628, 589535, 943256, 1179070, 1532791, 2358140, 3065582, 4716280, 6131164, 7663955, 12262328, 15327910, 30655820, 61311640]

約数ペア:

[(1, 61311640), (2, 30655820), (4, 15327910), (5, 12262328), (8, 7663955), (10, 6131164), (13, 4716280), (20, 3065582), (26, 2358140), (40, 1532791), (52, 1179070), (65, 943256), (104, 589535), (130, 471628), (157, 390520), (260, 235814), (314, 195260), (520, 117907), (628, 97630), (751, 81640), (785, 78104), (1256, 48815), (1502, 40820), (1570, 39052), (2041, 30040), (3004, 20410), (3140, 19526), (3755, 16328), (4082, 15020), (6008, 10205), (6280, 9763), (7510, 8164)]